build-release.sh

#!/bin/bash
sum="sha1sum"

if ! hash sha1sum 2>/dev/null; then
	if ! hash shasum 2>/dev/null; then
		echo "I can't see 'sha1sum' or 'shasum'"
		echo "Please install one of them!"
		exit
	fi
	sum="shasum"
fi

[[ -z $upx ]] && upx="echo pending"
if [[ $upx == "echo pending" ]] && hash upx 2>/dev/null; then
	upx="upx -9"
fi

VERSION=$(git describe --tags)
LDFLAGS="-s -w"
GCFLAGS=""

OSES=(linux darwin freebsd windows)
ARCHS=(amd64 arm64 386)

mkdir bin


for os in ${OSES[@]}; do
	for arch in ${ARCHS[@]}; do
    if [ "$os" == "darwin" ] && [ "$arch" == "386" ]; then
      continue
    fi
		suffix=""
		if [ "$os" == "windows" ]
		then
			suffix=".exe"
		fi

		build () {
			mkdir build
			pushd build
			env CGO_ENABLED=0 GOOS=$os GOARCH=$arch go build -v -ldflags "$LDFLAGS" -gcflags "$GCFLAGS" -o "$1${suffix}" "../$1"
			$upx "$1${suffix}" >/dev/null
			local archive_name="../bin/$1-plugin-${os}-${arch}-$VERSION.tar.gz"
			if [[ "$1" == "dnstt-server" ]]; then
				tar -zcf "$archive_name" "$1${suffix}" -C ".." "$1-plugin"
			else
				tar -zcf "$archive_name" "$1${suffix}"
			fi
			$sum ../bin/$1-plugin-${os}-${arch}-$VERSION.tar.gz
			popd
			rm -rf build
		}
		build 'dnstt-client'
		build 'dnstt-server'
	done
done